Electrically-operated bell.



APILIOATIOI FILED AlJ. 190|.

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Bells, of which the following is a ful ,clear l which it cnn he secured to the upper ein poi'- U N ITED STATLES PATENT OFFICE. AIBUBY G. WILSQN, l WILKINBBUBG. PINI'BYLVARIA, ABSIGIOI T0 m UNIO' SWITCH SIGNAL CQHPANY, 0F SWISVALE, PENNSYLVANIA, A CORPOIATIO' 0F PENNSYLVANIA.

ELECTBICALLY-OPlATID BILL.

956,250. Ipaetleatioa of Lettera raten.

Application ated Aprila, 1.900. aerial no. 435.066.

To all whom it may concern.'

lie it known that I Asaviir G. WiLsoN of Wilkinahur Allegheny county, State of Pennsylvania, iave invented a new and useful Improvement in .Electricallyrated Vi .comparatively li ht, and their arraii meut;

is such that as the motor gains e they are thrown outwardly by centrifugal force until their centers of ravity are at a maximum distance from t e axis of rotation at which time they strike a. lug 12 secured to and exact, description reference being had the inner Side of the bell and thus sound to the accom anying rawin forming part the alarm. The hammers being pivoted, of this specification, in whiclthey can retract after the lng on the bell is struck to enable them to pass such lng, there- Fig'ure 1 is a vertical section of one form of be l embodying my invention; and Fi 2 isa horizontal section on the line II-I of by admitting of a continuous rotation of the motor shaft, and a continuous sounding of the alarm until the supply of power has i 1. gly invention has relation to the class of btell CUOH- electrically operated bells, and has been The adv'anta s of my invention will'be more particularly (legi ned t0 provide a bell I a parent since it irovides an extremely sinifor use a( the mill-@n @mmf-gg und other i p e hell capableo giving a continuous alarm similar ints where a bell is continuously 11S lOYl 11S the Operiltln Current IS provided. operat as a warning signal so long as a Il 'l be pplilent t n t Various changes train is within a certain distance of the n llly b@ milde In ille detllll 0f the Construceroasing. tio'n and arrangement. Thus, the armature The object of my invention is to provide i Shaft "19X be.Pl`0"1ded Wlh l Single lllma simple forni of bell which can [ie continumCl'f-Hl''ymg Mm OP Wlth 'more thin WO 0f onsly rotated by. an electric motor as long as Slfh arms and the the current supply for thel niotor is inainby illes@ lmllllly tained. What I claim isrllie precise iiiitiire of my invention will l- Signal bell OOmpriSing a casing, a be bea andai-stood by reference to the acbell suspended from the tgp of the casing, conipanying drawings, in which I have an electric motor support in the casing shown one embodiment thereof, and which lXlOV lh be, "1 alim Secured t0 the mOtOl' will now be described, it being premised, shaft to rotate within the bell, and a hainhowever, that various changes may be made i "P lliOVlibly comiectd t0 the li'm t0 yield therein by those .skilled iii the art without nflel @00h 009ML* with the bell; Substandeparting from my invention as defined in i tlillly HS ilHCIilXCL the npiendcd claims. Q. A Signal hell comprising a casing, ii

In i iese drawings, the numeral 2 dcaiglin-ll suspended within the casing, an electric mites a easing or homing which.'in the iir-E lllOlvl Supported-inthe casing, an aim 8etieulai` foi-in shown. is provided wit i a cured to t ie niotor'shnft to rotate within the socket Il at its lower portion hy mea in of hell, a lug secured to the inner -aurface of the bell, and a hammer pivoted to the rotiitinig ai'iii to engage with said lng; suli'liintially as described.

3. A signal bell comprising a casing, a bell suapended within the casing, iin electric motor supported in the casing. an arm secured to the iiiotor sha ft to rotate within the bell, a lng secuied to the inner surface of the bell, and a hammer pivotally mounted at the outer end of the rotating ami and arranged to be thrown into contact with the pvoted hammers carried of any suitable form.

tion of a supporting post -t h v set screws 5, or other suitable means.

(i designatesI a hell or gong.. which is suppoi'ted within the upper portion of the casingror houaing*r hy ineiim.l of a bolt 7 secnied f in the roof or rover iortioii of the housing.

3 de ifvnates an eeetiic motor which is piefei'abiv of the induction type. This motor is set with itsarmatnre extending vertically. und the armature shaft 8' is extended ahove its upper bearing l) and has Secured thereto the radial arms 10, to the outer end portion of each of which is pivoted a hammer 11. These hammers are struck it; substant'ally as described. signal bell'oonip ing a casing, a

hazing lng on the hell hy the centrifugal action olf rotation and to yield to paas said lug after Patented Apr. 26, 1910.

lo idle .fm hivin ement-mi :o mmuyu and g In testimony whereo'f, I have hereunto set my hand.

ASBURY G. WILSON.

Witneases:

J no. D. Tanon, C. C. Wam. 

